We have a 4 month old lab. He's our first dog but we have lots of dogs in the family and had them as pets growing up. All the dogs we know have started on leads and then when/if they have good recall they have off lead walks.
I've had two people (a spaniel owner and another lab owner) tell me I should never have put my pup on a lead. That young pups will always follow you so you don't need one. I've replied that I use one for safety around roads and to stop him running off after dogs/people but apparently that's not necessary as he would have been born with perfect recall had I not ruined it by using a lead.
Is this a thing? Well clearly for these people it is but it's not something I've heard of before.
We attend a dog training class and are working on recall there. The trainer has never mentioned not using leads. My dog has great recall at home/in the garden but given how excited he is on lead I don't think he would come back to me if he saw people/dogs.
We live near a town centre and he would run across roads to meet people if he could. He would approach people and dogs who don't want to be approached and possibly upset people/get barked at or injured by another dog.
But maybe none of this would be the case if I'd never used a lead?!